Radience

Circulatory and Respiratory System

Science

tiny, thin-walled sacs in the lungs where oxygen and carbon dioxide are exchanged between air and the blood
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a blood vessel that carries blood away from the heart
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a disorder which narrows the airways to the lungs, making breathing difficult
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the buildup of fatty deposits called plaque on artery walls

The buildup of fatty deposits called plaque on artery walls. Atherosclerosis. It's a condition where arteries become narrowed and hardened due to the accumulation of plaque, reducing blood flow.

one of the two upper chambers of the heart, it receives blood from the body
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the force that the blood exerts on the walls of the arteries
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one of the two large tubes that connect the trachea to the lungs
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a tiny blood vessel that allows the exchange of gases, nutrients, and waste products
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the system of the heart, blood, and blood vessels, it moves oxygen, nutrients and waste
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the muscle below the lungs that controls breathing
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a lung disease that destroys lung tissue and makes breathing difficult
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the muscular organ that pumps blood through the body
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the iron-containing protein in red blood cells that binds to oxygen
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the voice box, it contains vocal cords
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the respiratory organ that absorbs oxygen from the air and removes carbon dioxide from the blood
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a clear tissue fluid that moves between the blood and the lymph vessels, it transports fats and aids the immune system
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a white blood cell that fights pathogens, a B cell or T cell

A white blood cell that fights pathogens, a B cell or T cell. Lymphocyte. Lymphocytes are immune cells that help protect the body from infections.

the group of cells in the right atrium of the heart that “set the pace” for the heartrate, the sinoatrial node

The group of cells in the right atrium of the heart that set the pace for the heart rate, the sinoatrial node. Pacemaker. A pacemaker is a small device that helps regulate the heartbeat by sending electrical signals to the heart.

the tubelike passage from the mouth, it carries food and air
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the liquid part of blood, it is clear yellow and contains blood cells
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a cell fragment that helps form blood clots
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the flow of blood between the heart and the lungs
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a disc-shaped cell that uses hemoglobin to carry oxygen from the lungs to the body
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the flow of blood between the heart and all parts of the body, except the lungs
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the windpipe, it carries air from the mouth and nose to the lungs
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a flap of tissue that prevents the backflow of blood in the heart or in a vein

A flap of tissue that prevents the backflow of blood in the heart or in a vein. A valve is a structure in the body that ensures blood flows in the right direction.

a blood vessel that carries blood to the heart
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one of the heart’s two lower chambers, it pumps blood out of the heart
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a large blood cell that fights disease

A large blood cell that fights disease. White blood cell. White blood cells are immune system cells that help protect the body against infections and disease.

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